Comparison in the γ-Lactone Content of Oils and Extracts from White Cypress Pine (Callitris glaucophyllaThompson & Johnson)
作者:
Luigino Doimo,
RobertJ. Fletcher,
BruceR. D'Arcy,
期刊:
Journal of Essential Oil Research
(Taylor Available online 1999)
卷期:
Volume 11,
issue 4
页码: 415-422
ISSN:1041-2905
年代: 1999
DOI:10.1080/10412905.1999.9701173
出版商: Taylor & Francis Group
关键词: Callitris glaucophylla;Cupressaceae;white cypress-pine;extract composition;essential oil composition;6-methyl-5-hepten-2-one;citronellic acid;(-)eudesma-1,4(15);11-triene;β-selinene;α-selinene;guaiol;α-eudesmol;β-eudesmol;callitrin
数据来源: Taylor
摘要:
The γ-lactones found in white cypress-pine(Callitris glaucophylla)wood are compounds implicated in termiticidal activity. Distilled oils and solvent extracts from an cypress-pine contained different amounts of γ-lactones. The distilled oils were poor in γ-lactones (<10%) while solvent extracts were rich in these compounds (>45%). Oils and extracts contained (-)eudesma-1,4(15),11-triene, β-selinene and α-selinene previously found in otherCallitrisoils. Six γ-lactones were identified using GC/MS. They were callitrin, dihydrocolumellarin, callitrisin, columellarin, germacranolide and dihydrocallitrisin. Mass spectroscopy indicated three previously unidentified lactones; two were isomers of callitrisin and the third, an isomer of germacranolide. Chiral gas chromatography separated many enantiomers of lower boiling point components of the distilled oil.
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